KATE Middleton was left feeling humiliated and felt the need to temporarily call time on her relationship with Prince William due to his partying, a book has revealed.

Kate Middleton and Prince William are now happily married and the ultimate royal couple, having tied the knot at Westminster Abbey in 2011. The Duke and Duchess of Cambridge also have a seemingly perfect family life as they dote on their adorable three children: Prince George, Princess Charlotte and Prince Louis. However, the couple faced their hard times, and even broke up before going on to marry.

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Kate – who turns 37 today – felt “humiliated” in 2007 by the Prince’s partying habits and the couple took a break, according to royal author Jessica Jayne.

Ms Jayne’s 2012 book “The Duchess of Cambridge: How Kate Middleton Became A Future Queen” claims that three years before their engagement, Kate quit her job at fashion house Jigsaw because she needed “some time to think about her relationship with William”.

Meghan Markle’s sister-in-law is said to have been doubting her boyfriend when she learned he was going clubbing with his friends instead of seeing her.

William was seen to have “flirted and danced with a girl” while in club Boujis, the book claims.

Prince William and Kate Middleton (Image: GETTY)

Kate Middleton met Prince William at the University of St Andrews (Image: GETTY)

The couple decided to “take a break” from the relationship when a picture of the Prince getting close to two girls in a nightclub was published in the tabloids.

Ms Jayne adds: "Kate was further humiliated when a photo of William with two girls was published in the tabloids."

Despite the split, it did not take long before the pair were back together.

Kate Middleton with Prince William after the birth of Prince Louis (Image: GETTY)

In November 2010, Kate and William announced their engagement, with Ms Middleton showing off the late Princess Diana’s iconic engagement ring on her own hand.

The Duchess of Cambridge is celebrating her birthday today but William will not be with her to celebrate.

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